The Yokogawa CP333D-S3, also cataloged as the CP333D Processor Module, operates as a dedicated hardware component for mission-critical control strategy execution and sequence logic management within CENTUM CS and CENTUM VP network platforms. Configured for high-speed data exchange across Vnet system bus structures, the unit provides direct physical/electrical execution of real-time control algorithms from its position inside the Field Control Station (FCS).
| Parameter | Specification |
|---|---|
| Model | CP333D-S3 |
| Brand | Yokogawa |
| Origin | Japan |
| Weight | 1.0 kg |
| Dimensions | 51 mm x 254 mm x 203 mm |
| Operating Temp | 0 to 50 deg C |
| Power Consumption | Maximum 2.5 A (3.3 VDC +/- 9% internal logic) |
| Processor Architecture | 32-bit RISC, 400 MHz clock speed |
| Memory Capacity | 256 MB RAM / Onboard Flash ROM |
| Network Protocol | Vnet / Vnet/IP Redundant Ethernet |
| Product Category | Processor Module / CPU Card |
| Redundancy Support | Dual-Redundant FCS architecture |
| Hardware Revision | Style 3 (S3) |
The processor module utilizes an integrated 32-bit RISC architecture running at 400 MHz to process 4-20 mA HART loop protocol variables and complex digital automation arrays. Channel-to-channel isolation on associated I/O racks interfaces directly with this card through the Vnet backplane bus, enabling sub-millisecond execution loops for critical plant subsystems. Built-in firmware registers maintain synchronized memory tables across dual-redundant configurations, enforcing instantaneous tracking of system state variables to manage backup controller switches without loop disruption or signal drops.
Q: How does the Style 3 revision affect hardware deployment alongside older style cards? A: The Style 3 (S3) designation indicates updated internal circuitry and improved thermal management profiles. It remains fully backward compatible with legacy Vnet hardware, provided the controller chassis backplane supports the specific slot footprint and the system firmware matches the minimum revision requirements.
Q: What is the behavior of the CP333D-S3 during a primary processor fault in a dual-redundant setup? A: The hardware operates in an active-standby matrix. The standby processor continuously syncs control logic frames via the dedicated Vnet link. If the primary module fails diagnostic checks, control transitions to the redundant card with zero-millisecond signal lag to the field instruments.
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